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[New] Added StringHelper.asPrettyHexString()

This commit is contained in:
Robert von Burg 2017-05-26 12:29:04 +02:00
parent 96771b40ba
commit 53e4d5ce87
1 changed files with 29 additions and 0 deletions
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29
li.strolch.utils/src/main/java/li/strolch/utils/helper/StringHelper.java
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@ -56,6 +56,35 @@ public class StringHelper {
(byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd',
(byte) 'e', (byte) 'f' };
public static String asPrettyHexString(byte[] raw) {
try {
byte[] hex = new byte[3 * raw.length + (raw.length / 8)];
int index = 0;
for (int i = 0; i < raw.length; i++) {
byte b = raw[i];
int v = b & 0xFF;
hex[index++] = HEX_CHAR_TABLE[v >>> 4];
hex[index++] = HEX_CHAR_TABLE[v & 0xF];
hex[index++] = ' ';
if ((i + 1) % 8 == 0) {
hex[index++] = ' ';
}
}
return new String(hex, "ASCII"); //$NON-NLS-1$
} catch (UnsupportedEncodingException e) {
String msg = MessageFormat.format("Something went wrong while converting to HEX: {0}", e.getMessage()); //$NON-NLS-1$
throw new RuntimeException(msg, e);
}
}
public static void main(String[] args) {
System.out.println(asPrettyHexString(fromHexString("010000000000040003000000000000c0")));
}
/**
* Converts each byte of the given byte array to a HEX value and returns the concatenation of these values
*